Washington County is Oregon's second-most-populous county, home to approximately 617,000 people in Beaverton, Hillsboro, Tigard, Tualatin, and the surrounding Silicon Forest technology corridor. It forms the western half of the Portland metro and is routinely searched under the wrong county — Portland postal addresses in some parts of Beaverton and the Sunset corridor direct mail through Portland post offices even though the properties are firmly in Washington County. Washington County Circuit Court records have no connection to Multnomah Circuit Court, and a search anchored to "Portland" will miss everything filed in the Washington County system.
Washington County's defining records characteristic is technology-sector address churn. Intel, Nike, and a large cluster of semiconductor and software companies dominate the county's employment base, and their workforces rotate — through transfers, layoffs, and contractor cycles — at rates that produce above-average address turnover. A two-year-old Washington County address for someone with a tech-sector job history should be treated as directional rather than confirmed. The statewide OJD eCourt portal is the correct starting point and covers Washington County Circuit Court alongside all other Oregon circuits. See the Oregon state guide for the full statewide context.
Key takeaways
- Washington County's population is approximately 617,000 (2023 U.S. Census Bureau estimate), making it Oregon's second-largest county.
- Washington County Circuit Court is accessible through Oregon's OJD eCourt statewide portal — no separate county login needed.
- Some Portland postal addresses in the Sunset corridor and Beaverton area are actually in Washington County — confirming by ZIP code before pulling records prevents a misdirected Multnomah County search.
- Technology-sector employment creates above-average address turnover — a tech worker's Washington County address may be outdated within 12–18 months of a job change or relocation.
Washington County quick facts
- Population: ~617,000 (2023 U.S. Census Bureau estimate)
- County seat: Hillsboro
- Largest city: Beaverton (~99,000)
- State: Oregon
- Primary court system: Washington County Circuit Court (20th Judicial District)
How record searches work in Washington County
The Washington County search sequence is: confirm the county by ZIP code → run the OJD eCourt statewide name search → confirm Washington County Circuit Court as the relevant court → contact the circuit court clerk for full documents. The county confirmation step is the one most often skipped — many searches that should target Washington County are mistakenly anchored to Multnomah County because the person has a "Portland" mailing address or because the searcher associates the entire Portland metro with Portland proper.
Washington County ZIP codes that distinguish it from Multnomah: Beaverton (97005–97008), Hillsboro (97123–97124), Tigard (97223–97224), Tualatin (97062), Sherwood (97140), and Forest Grove (97116). If the address is in any of these ZIP codes, Washington County Circuit Court is the correct court — not Multnomah. See our guide on searching by name and city for how to anchor before pulling records.
Court system overview
Washington County Circuit Court (20th Judicial District) handles all felony criminal cases, civil matters, domestic relations, and probate for the county. It is accessible through Oregon's OJD eCourt statewide portal. Case summaries are available online; full case documents require contacting the Washington County Circuit Court clerk or visiting the Hillsboro courthouse.
Washington County has no separate county-level lower court — Oregon's circuit courts handle the full range of trial court matters. Beaverton Municipal Court covers city ordinance violations within Beaverton separately from circuit court; other Washington County cities similarly have their own municipal courts for local ordinance matters. See our court records guide for how Oregon's unified circuit court structure works.
Types of records available
- Washington County Circuit Court records: Felony criminal cases, civil filings, domestic relations, and probate — searchable through Oregon's OJD eCourt statewide portal
- Municipal court records: City ordinance violations in Beaverton, Hillsboro, Tigard, and other cities — separate from the circuit court
- Property records: Washington County Assessor and Department of Assessment and Taxation maintain ownership and transfer records, searchable online
- Arrest records: Washington County Sheriff and individual city police departments maintain records separately from court portals
- Professional licensing: Oregon state licensing boards — particularly Oregon Board of Dentistry, Oregon State Bar, Oregon Engineering Board — maintain public license lookups relevant for the county's large professional workforce
Crime statistics and public-safety context
Washington County's crime rates are substantially lower than Multnomah County's — the western Portland suburbs are among the lower-crime areas in the Portland metro by most measures. Beaverton and Hillsboro report rates typical of mid-sized suburban technology-corridor cities; Tigard and Tualatin are lower still. The county's lower crime rates relative to its population size mean that a Washington County court record query on a common name returns a more manageable result set than a comparable Multnomah County query. Our criminal records guide covers how to interpret Oregon circuit court results in context.
Major cities in Washington County
- Beaverton — Washington County's largest city (~99,000) and home to Nike's world headquarters. Beaverton sits within Washington County Circuit Court and has its own municipal court for ordinance violations. Some Beaverton addresses carry "Portland" postal designations — always confirm by ZIP code (97005–97008) before routing to a court. Nike's corporate campus and the surrounding employer ecosystem create significant professional workforce mobility, and address histories in the Beaverton tech corridor can turn over quickly.
- Hillsboro — County seat (~108,000) and home to Intel's largest U.S. campus. Washington County Circuit Court is headquartered in Hillsboro. Intel's manufacturing workforce, which includes a large immigrant population from India, Taiwan, and the Philippines, produces name-search patterns that benefit from checking alternate name spellings and transliteration variants more than in most Oregon cities. Hillsboro ZIP codes (97123–97124) cleanly identify Washington County for records routing.
- Tigard — Southern Washington County suburb (~55,000) between Beaverton and Tualatin. Tigard falls within Washington County Circuit Court. The city's position along I-5 and its commercial corridor along Highway 99W create a mixed residential and commercial character — address histories here are more stable than in the tech-corridor cities to the north.
- Tualatin — Suburban city (~31,000) at the southern edge of Washington County bordering Clackamas County. Tualatin falls within Washington County Circuit Court for district-level matters. Some Tualatin addresses near the Clackamas County boundary approach the Sherwood area — confirming the county for southern Tualatin addresses before pulling records is worth the extra step.
- Forest Grove — Western Washington County city (~25,000) near the Tualatin Valley wine region. Forest Grove falls within Washington County Circuit Court. Pacific University's campus creates some academic address churn in the 97116 ZIP code area. Forest Grove's distance from the Portland metro core gives it a more stable long-term residential population than the inner-ring suburbs closer to the city.
Common search scenarios
Searching by name and city in Washington County
The most important first step is confirming the county by ZIP code — not by city name, since some Beaverton addresses carry Portland postal designations. Once the ZIP confirms Washington County, Oregon's OJD eCourt statewide portal covers Washington County Circuit Court alongside all other Oregon circuits in a single search. Our name-based search guide covers the initial identity step before pulling court records.
Checking county court records
OJD eCourt is the correct starting point. Run the statewide name search and confirm Washington County in the returned case locations. For full case documents, the Washington County Circuit Court clerk in Hillsboro is the contact. For municipal ordinance matters in Beaverton or other Washington County cities, the relevant city's municipal court is a separate inquiry. Property records through the Washington County Assessor can supplement court records as an address anchor for recently arrived tech-sector residents. See our public records guide for Oregon's broader framework.
Searching for a tech-sector worker
For any Washington County search involving someone with Intel, Nike, or broader Silicon Forest employment history, treating address records as potentially outdated within 12–18 months is a reasonable default. Prior Oregon addresses in Multnomah County (if the person moved from Portland), or prior California or Texas addresses for recent transplants, are often as relevant as the current Washington County record. Professional licensing records through the relevant Oregon board can sometimes confirm current employment status faster than any address search.
Start Here: Enter Any Name To View Records
Best sites for Washington County people searches
When I'm starting a Washington County search, these are the two services I recommend reviewing first — particularly for confirming the county identity of a Portland-labeled address before pulling circuit court records.
| Service | Why people use it | Best fit |
|---|---|---|
| Instant Checkmate | Aggregates address history across Washington and Multnomah counties — useful for confirming which county a Portland-labeled address actually falls in | County confirmation before routing to OJD eCourt for Washington County Circuit Court records |
| TruthFinder | Address timeline data across the Portland tri-county metro and prior out-of-state addresses | Tracing tech-sector worker address history across multiple states before current Washington County residence |
These services are not consumer reporting agencies. Do not use them for employment, tenant screening, insurance, or any FCRA-regulated purpose.
Why do some Beaverton addresses show "Portland" as the city?
Parts of Beaverton and the western Portland metro are served by Portland post offices, which means mail is addressed with "Portland" as the city even though the property is in Washington County. This is a postal designation, not a government boundary — the properties are in Washington County, within Washington County Circuit Court jurisdiction, policed by the Washington County Sheriff and Beaverton Police, and assessed by the Washington County Assessor. Confirming by ZIP code (97005–97008 for Beaverton, 97123–97124 for Hillsboro) is the fastest way to establish the correct county before pulling records.
Is Washington County part of the Portland metro?
Yes — Washington County is the western component of the Portland-Vancouver-Hillsboro Metropolitan Statistical Area. But for court records, property records, and government services, it is entirely separate from Multnomah County. Washington County Circuit Court, the Washington County Assessor, and the Washington County Sheriff operate independently from their Multnomah County counterparts. A search that covers only Multnomah County will miss all Washington County records, even for people who consider themselves Portland metro residents.
Can I use these searches for jobs, housing, or insurance decisions?
No. The services discussed on this page are not consumer reporting agencies and the information here is not a consumer report. They should not be used for employment, tenant screening, insurance underwriting, credit, or any other purpose regulated by the Fair Credit Reporting Act.
Other Oregon county guides
